I use to just sand 2 sides everytime, these days I do 6 sides and have thought it produced a more even finish. I don't know how comfortable I would be just doing 2 sides again, 4 sides wouldn't be bad. Or maybe doing 2 sides for one grit an opposite side for the next grit.
Although I don't mnow many that would do this but when you think about it, if someone that is just getting involved in doing his own surfaace changes at home with a spinner, just did 2 sides each time, being the same sides each time over time, the ball would turn oval, maybe not noticably oval, but oval, wouldn't it?
That last ^ real long sentence showed my awesome writing skills, I just don't feel like changing it. haha
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What is sandbagging???